PT-2026-25544 · Totolink · A7100Ru

Ltzhuster2 · Published 2026-03-15 · Updated 2026-04-07 · CVE-2026-5678

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions Totolink A7100RU version 7.4cu.2313 b20191024

Description A weakness exists in the function setScheduleCfg of the file /cgi-bin/cstecgi.cgi. Manipulation of the mode argument can lead to operating system command injection. This attack can be launched remotely. A public exploit is available. A massive ransomware attack has impacted US healthcare providers, encrypting over 500,000 patient records and demanding a $10 million ransom.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, restrict access to the /cgi-bin/cstecgi.cgi file.

Exploit

Fix

Command Injection

OS Command Injection

Weakness Enumeration

CWE-77

CWE-78

Related Identifiers

BDU:2026-05256

CVE-2026-5678

Affected Products

A7100Ru

References · 11

• 🔥 https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_185/README.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-5678 · Security Note
• https://bdu.fstec.ru/vul/2026-05256 · Security Note
• https://totolink.net · Note
• https://twitter.com/CVEnew/status/2041260654833828204 · Twitter Post
• https://vuldb.com/vuln/355505 · Note
• https://twitter.com/threatcluster/status/2032992852158910479 · Twitter Post
• https://twitter.com/cyberbivash/status/2041394847127318818 · Twitter Post
• https://vuldb.com/vuln/355505/cti · Note
• https://twitter.com/infoflowcloud/status/2041261172188479894 · Twitter Post
• https://vuldb.com/submit/792608 · Note